[QUOTE=DrRobin;643427]
Quote:
Originally Posted by blue62
I did a throttle calibrate but it made no difference. I will try to get MAF voltage readings tomorrow. Hopefully my 5 point T20 Torx will turn up and I can get the MAF out for a look and possible clean.
By the look of the screws the MAF has never been changed and I haven’t seen it on a bill for the 14 years I have had the car so it stands a good chance of been faulty, especially at 93k miles. A new Bosch MAF is £90, so not too bad if it fixes the problem.
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If you did a throttle calibrate then my guess is a MAF issue or a vacuum leak.
But you stated the car ran better with the MAF unplugged so I am leaning towards a bad MAF.
Voltage spec. for MAF key on engine off ...0.9-1.1 volts
Voltage spec. at idle 1.2-1.5 volts.